Lighting device



FIG. 1 is a perspective rear-bottom view of a lighting device;

FIG. 2 is a perspective frontal-top view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a view from one side thereof;

FIG. 6 is a view from another side thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

The broken line showing of portions of the lighting device is included for the purpose of illustrating environmental structure and forms no part of the claimed design. 

CLAIM The ornamental design for a lighting device, as shown and described. 